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US4908962A
Expired / Lapsed
US
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Custom midsole for heeled shoes
Assignee: Autry Industries Inc
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Filing: 1988-06-16
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Granted: 1990-03-20
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Expires: 2008-06-16
Abstract
Abstract A midsole (10 and 32) for heeled shoe (12) comprises a removable insert (10), a peripheral heel member (26) and a peripheral midsole member (32). The peripheral heel member (26) is joined to a portion of the perimeter of an upper surface (20) of an outsole (14) and peripheral midsole member (32) is joined to the remaining portion of upper surface (20) of outsole (14) and to an upper leveling surface (30) of heel member (26) to form a stepped orifice (38). A reinforcing layer (40) substantially less thick than the peripheral members (26 and 32) is joined to the outsole upper surface (20) within the orifice (38). A plurality of independent cushioning elements (46, 48 and 50) depend from a base member (44) of insert (10), and are sized in order to conform to the stepped orifice (38).
Inventors
- 👤 Lin Yung-Mao
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:47
CPC Classifications
A; A43; A43B; A43B7/00; A43B7/14; A43B7/1405; A43B7/1455; A43B7/146; A43B1/00; A43B1/0072; A43B13/00; A43B13/14; A43B13/18; A43B13/181; A43B13/184; A43B17/00; A43B17/02
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
112 words
A shoe with a stepped heel, comprising: a durable outsole having an upper surface including a front portion and a heel portion, said heel portion stepped downwardly from said front portion; a cushionable midsole comprising at least one stepped peripheral portion and a separate, removable stepped insert, a lower surface of said peripheral portion joined to said outsole upper surface, said at least one peripheral portion forming a stepped orifice for receiving said insert; said removable insert having a plurality of convex cushioning elements configured with a stepped lower surface for disposal substantially adjacent to said outsole upper surface and having a preselected cushionability; and an upper joined to said peripheral portion.
Claim 2
Dependent Claim
112 words
A shoe with a stepped heel, comprising: a durable outsole having an upper surface including a front portion and a heel portion, said heel portion stepped downwardly from said front portion; a cushionable midsole comprising at least one stepped peripheral portion and a separate, removable stepped insert, a lower surface of said peripheral portion joined to said outsole upper surface, said at least one peripheral portion forming a stepped orifice for receiving said insert; said removable insert having a plurality of convex cushioning elements configured with a stepped lower surface for disposal substantially adjacent to said outsole upper surface and having a preselected cushionability; and an upper joined to said peripheral portion.
Claim 3
Dependent Claim
33 words
The shoe of claim 1, wherein said stepped insert is dimensioned to receive most of the weight transmitted to said midsole by the wearer once said insert is inserted into said stepped orifice.
Claim 4
Dependent Claim
28 words
The shoe of claim 1, wherein said peripheral portion is elongate and endless, said peripheral portion laterally enclosing said insert when said insert is inserted into said orifice.
Claim 5
Dependent Claim
29 words
The shoe of claim 3, wherein said peripheral portion has an upper surface, a lower lip member of said upper joined to said upper surface of said peripheral portion.
Claim 6
Dependent Claim
36 words
The shoe of claim 4, and further comprising: an elongate endless peripheral liner joined to said lip member of said upper, said lip member disposed between said upper surface of said peripheral portion and said liner.
Claim 7
Dependent Claim
13 words
The shoe of claim 1, wherein said insert is formed of polyurethane foam.
Claim 8
Dependent Claim
23 words
The shoe of claim 1, and further comprising an insole integrally formed with said insert, said insole extending substantially over said peripheral portion.
Claim 9
Dependent Claim
27 words
The shoe of claim 7, wherein an upper surface of said insert is covered with a fabric, said fabric comprising a flocking material comprising polyester and nylon.
Claim 10
Dependent Claim
57 words
The shoe of claim 1, further comprising a reinforcing layer joined to said outsole upper surface within said orifice, said reinforcing layer being substantially thinner than the depth of said orifice and providing torsional strength to said outsole, said stepped lower surface of said insert contacting said reinforcing layer when said insert is inserted into said shoe.
Claim 11
Dependent Claim
20 words
The shoe of claim 9, wherein said reinforcing layer is substantially less flexible and more resilient than said peripheral portion.
Claim 12
Dependent Claim
14 words
The shoe of claim 10, wherein said reinforcing layer comprises leatherized paper or cardboard.
Claim 13
Dependent Claim
57 words
The shoe of claim 1, wherein said peripheral portion further comprises: a peripheral heel member fixed to said heel portion of the outsole upper surface, said peripheral heel member having a top surface; and a peripheral midsole member fixed to said front portion of said outsole upper surface and to said top surface of said heel member.
Claim 14
Dependent Claim
125 words
A midsole for disposal above a stepped upper surface of a heeled outsole comprising: a stepped removable insert of said midsole; a peripheral member disposed laterally outwardly of said insert to form a stepped orifice; and said insert having a base member for disposal on said peripheral member and a lower stepped portion depending from said base member, said lower portion comprising a plurality of convex cushioning elements having various lengths, said elements each operable to cushionably deform and flatten responsive to a force having a component perpendicular to said insert at said element, each element operable to deform independently of the remaining elements, and said lower portion insertable through said orifice to be disposed substantially adjacent to the stepped upper surface of the outsole.
Claim 15
Dependent Claim
125 words
A midsole for disposal above a stepped upper surface of a heeled outsole comprising: a stepped removable insert of said midsole; a peripheral member disposed laterally outwardly of said insert to form a stepped orifice; and said insert having a base member for disposal on said peripheral member and a lower stepped portion depending from said base member, said lower portion comprising a plurality of convex cushioning elements having various lengths, said elements each operable to cushionably deform and flatten responsive to a force having a component perpendicular to said insert at said element, each element operable to deform independently of the remaining elements, and said lower portion insertable through said orifice to be disposed substantially adjacent to the stepped upper surface of the outsole.
Claim 16
Dependent Claim
42 words
The midsole of claim 13, wherein said stepped orifice comprises a toe portion and a heel portion stepped to be of greater depth than said toe portion, said cushioning elements including a plurality of longest elements for disposal in said heel portion.
Claim 17
Dependent Claim
12 words
The midsole of claim 14, wherein said cushioning elements are radially symmetrical.
Claim 18
Dependent Claim
37 words
The midsole of claim 15, wherein said lower stepped portion comprises a heel section and a toe section, said cushioning elements of said heel section having a larger radius than said cushioning elements of said toe section.
Claim 19
Dependent Claim
18 words
The midsole of claim 15, wherein said cushioning elements are formed as pillars with rounded lower free ends.
Claim 20
Dependent Claim
21 words
The midsole of claim 13, wherein said elements are each laterally adjacent a plurality of other elements in a closest-packing arrangement.
Claim 21
Dependent Claim
13 words
The midsole of claim 13, wherein said elements are arranged in transverse rows.
Claim 22
Dependent Claim
30 words
The midsole of claim 13, wherein said base member comprises an insole member formed above said lower portion of said insert and extending laterally to substantially cover said peripheral member.
Claim 23
Dependent Claim
29 words
The midsole of claim 13, wherein said removable insert is formed of a cushionable synthetic material, said insert selectable from among a plurality of like inserts having different cushionabilities.
Claim 24
Dependent Claim
51 words
The midsole of claim 13, further comprising a reinforcing layer joined to the stepped upper surface of said outsole within said peripheral member and having a thickness substantially less than said peripheral member, said lower portion of said insert contacting said reinforcing layer when said insert is inserted into said orifice.
Claim 25
Dependent Claim
76 words
The midsole of claim 13, wherein said heeled outside comprises a toe portion and a heel portion stepped downwardly from said toe portion, said peripheral member including a peripheral heel member fixed to said upper surface of said heel portion of said outsole, said heel member having a top surface; and a peripheral midsole member fixed to the upper surface of said toe portion of said outsole and to said top surface of said heel member.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-03-19 | 1993-09-18 | 1994-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-03-19 | 1997-09-18 | 1998-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-03-19 | 2001-09-18 | 2002-03-20 | $7700.00 | Window Closed / Lapsed |